New Holland NH 2124 – Transmission Controller (Transmission ECU / CCM): Flywheel Torque Sensor not calibrated or fitted in error

The electronic control unit has detected that the flywheel torque sensor has either lost its calibration values, the calibration procedure was not completed successfully, or the sensor is installed on a transmission configuration that does not support it.

• T6000 Series (T6010, T6020, T6030, T6040, T6050, T6060, T6070)
• T7000 Series (T7030, T7040, T7050, T7060 without Sidewinder)
• TS-A Series (TS125A, TS135A)
• TM Series (TM 175, TM 190)

1. 1

   Check for associated 'U' codes (U80, U81, U83, U84) that indicate why the calibration failed or cannot be performed

2. 2

   Verify transmission oil is warmed up to the stipulated temperature (check via the 'H9' menu on the instrument cluster)

3. 3

   Verify the operator has set the correct engine speed required for the calibration procedure

1. 1

   Preparation

   Park the tractor away from obstacles, apply the parking brake, chock the wheels, and ensure the ground speed display is at zero.

2. 2

   Warm-Up

   Warm up the transmission oil to the required operating temperature.

3. 3

   Enter Calibration Mode

   Access the 'HH' menu (or H-menu) on the tractor's display to enter the transmission calibration mode.

4. 4

   Run Calibration

   Follow the on-screen prompts to calibrate the transmission components. This typically requires setting a specific engine speed, moving the shuttle lever, and pressing the designated buttons to calibrate the clutches, synchronizers, and the flywheel torque sensor.

5. 5

   Clear Codes

   Once the calibration is completed successfully without U-code interruptions, the NH 2124 code should clear. If the calibration repeatedly fails (e.g., throwing a U80 or U81 code), the sensor or its wiring harness (Electrical schematic frame 04) must be inspected and potentially replaced.